Stop BOINC Requesting GPU/CUDA Work From Particular Projects

Message boards : Questions and problems : Stop BOINC Requesting GPU/CUDA Work From Particular Projects
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Profile rtX

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Message 25569 - Posted: 20 Jun 2009, 13:34:22 UTC

Is there any way to allow BOINC to request GPU/CUDA work from only one project - that is, stop it asking for GPU work from projects I know do not have CUDA WUs?
I am running 6.6.36 on Windows (various flavours).
TIA
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Profile Gundolf Jahn

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Message 25570 - Posted: 20 Jun 2009, 13:58:33 UTC - in response to Message 25569.  

Where's the problem? When there ar no CUDA applications, you'll get no CUDA tasks from that project and BOINC will reduce the frequency of requests.

Gruß,
Gundolf
Computer sind nicht alles im Leben. (Kleiner Scherz)
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Profile rtX

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Message 25572 - Posted: 20 Jun 2009, 20:39:08 UTC

Thank you for your response. I'm not in a position to comment directly on what you say happens. What I notice is that BOINC is requesting GPU tasks from all four projects I have running on the one machine I have a CUDA device, and doing it pretty frequently. I only want to run SETI on my GPU, and I do not want BOINC wasting time asking for CUDA WUs from projects that don't have them to send. And CP messages (below) seem to suggest that my settings are wrong.

20/06/2009 12:36:23	climateprediction.net	Sending scheduler request: To fetch work.
20/06/2009 12:36:23	climateprediction.net	Requesting new tasks for GPU
20/06/2009 12:36:34	climateprediction.net	Scheduler request completed: got 0 new tasks
20/06/2009 12:36:34	climateprediction.net	Message from server: No work sent
20/06/2009 12:36:34	climateprediction.net	Message from server: No work available for the applications you have selected.  Please check your settings on the web site.



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bloodrain

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Message 25575 - Posted: 21 Jun 2009, 5:35:29 UTC - in response to Message 25572.  

climate i think does not do cuda at the moment
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Profile rtX

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Message 25577 - Posted: 21 Jun 2009, 10:48:16 UTC

That is the point. CP does not do CUDA, therefore I would like to be able to tell BOINC to stop asking CP (and other projects that don't do CUDA) for CUDA work units.
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Richard Haselgrove
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Message 25581 - Posted: 21 Jun 2009, 11:24:19 UTC - in response to Message 25577.  

That is the point. CP does not do CUDA, therefore I would like to be able to tell BOINC to stop asking CP (and other projects that don't do CUDA) for CUDA work units.

Does it really matter? Is it a measurable overhead for either your processing or your comms bandwidth?

On the other hand, many years ago we were told that contacting a project scheduler (and hence accessing the BOINC database) was a costly operation in server resource terms. Now we seem to be happy throwing these redundant RPCs all over the place (even if only twice/host/project/day). I still worry that this may be a contributing factor in the spate of server problems we've seen recently, but we'd need input from a BOINC project server administrator to evaluate that.
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Profile rtX

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Message 25601 - Posted: 22 Jun 2009, 10:30:10 UTC

Thanks for your input. I have noticed that many of BOINC's calls to servers are not successful (for both GPU and CPU WUs). I have even seen reference sites inaccessible and then I get the (incorrect) message that there is something awry with my internet connection when there clearly is not. Like you, I cannot see how these redundant calls are helping matters and it would seem to be relatively simple to say, "don't make calls for something I don't want you to do anyway". As this does not seem to be an option, maybe it is not so simple.
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Aurora Borealis
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Message 25602 - Posted: 22 Jun 2009, 11:14:19 UTC

It is currently necessary for the Boinc manager to ask or it woundn't know when Cuda work becomes available at a project. The developers are aware and looking for a better mechanism for this process.
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Message boards : Questions and problems : Stop BOINC Requesting GPU/CUDA Work From Particular Projects

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